setDescription method
Sets the description of the camera.
Throws a CameraException if setting the description fails.
Implementation
Future<void> setDescription(CameraDescription description) async {
  if (value.isRecordingVideo) {
    await CameraPlatform.instance.setDescriptionWhileRecording(description);
    value = value.copyWith(description: description);
  } else {
    if (_initializeFuture != null) {
      await _initializeFuture;
      await CameraPlatform.instance.dispose(_cameraId);
    }
    await _initializeWithDescription(description);
  }
}